BU4820G-TR

Product Overview

Category: Integrated Circuit (IC)

Use: Power Management IC

Characteristics: - High efficiency voltage regulator - Low power consumption - Small form factor - Wide input voltage range - Overcurrent and overtemperature protection

Package: SOP-8

Essence: The BU4820G-TR is a power management IC designed to regulate voltage efficiently in various electronic devices.

Packaging/Quantity: The BU4820G-TR is typically packaged in reels containing 2,500 units.

Specifications

• Input Voltage Range: 4.5V - 40V
• Output Voltage Range: 1.25V - 37V
• Output Current: Up to 1.5A
• Quiescent Current: 3mA
• Operating Temperature Range: -40°C to +85°C

Detailed Pin Configuration

The BU4820G-TR features an SOP-8 package with the following pin configuration:

1. VIN: Input voltage pin
2. GND: Ground pin
3. FB: Feedback pin for output voltage regulation
4. EN: Enable pin for turning the IC on/off
5. VOUT: Output voltage pin
6. NC: No connection
7. NC: No connection
8. VCC: Supply voltage pin

Functional Features

• High Efficiency: The BU4820G-TR utilizes advanced circuitry to achieve high efficiency in voltage regulation, minimizing power loss.
• Overcurrent Protection: The IC incorporates overcurrent protection to safeguard connected devices from excessive current flow.
• Overtemperature Protection: It includes built-in thermal protection to prevent overheating, ensuring safe operation even under demanding conditions.
• Wide Input Voltage Range: The IC can handle a wide range of input voltages, making it suitable for various applications.
• Low Power Consumption: The BU4820G-TR consumes minimal power during operation, contributing to energy efficiency.

Advantages and Disadvantages

Advantages: - High efficiency voltage regulation - Wide input voltage range - Overcurrent and overtemperature protection - Small form factor

Disadvantages: - Limited output current capacity (up to 1.5A)

Working Principles

The BU4820G-TR operates as a step-down voltage regulator. It takes an input voltage from the VIN pin and regulates it to a desired output voltage at the VOUT pin. The feedback pin (FB) monitors the output voltage and adjusts the internal circuitry to maintain a stable output. The enable pin (EN) controls the on/off state of the IC.

Detailed Application Field Plans

The BU4820G-TR finds application in various electronic devices that require efficient voltage regulation. Some potential application fields include:

1. Consumer Electronics:

   • Smartphones
   • Tablets
   • Portable media players

2. Automotive Electronics:

   • Infotainment systems
   • GPS navigation devices
   • On-board charging systems

3. Industrial Equipment:

   • Power supplies
   • Motor control systems
   • LED lighting

4. Communication Systems:

   • Routers
   • Modems
   • Network switches

Detailed and Complete Alternative Models

1. LM2596S-ADJ: Adjustable Step-Down Voltage Regulator
2. TPS54331: Synchronous Step-Down DC-DC Converter
3. LT1763: Low Dropout Linear Regulator
4. MP2307: Buck Converter with Integrated Switch

These alternative models offer similar functionality and can be considered as substitutes for the BU4820G-TR in specific applications.

In conclusion, the BU4820G-TR is a power management IC that provides efficient voltage regulation with a wide input voltage range. Its small form factor, overcurrent and overtemperature protection, and low power consumption make it suitable for various electronic devices. However, its limited output current capacity should be considered in high-power applications.